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Q. What is compound?
A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they are in a mixture. In its place they are combined in a way such that the compound has properties that are different from those of the elements of which it is composed. Every compound is represented by a formula a combination of the symbols of the elements that make up the compounds. You may already recognize some chemical formulas such as H2O for water, NaCl for table salt and NH3 for ammonia.
PHOSPHORUS, ARSENIC AND ANTIMONY The bigger elements in the same group (15) as nitrogen are usually known as 'pnictogens' and their compounds with metals as 'pnictides'. Althoug
cual es la formula para el calor especifico
Calculation of Number of Atoms per Unit Cell of HCP (n): One half of the each of the 2 base centre atoms (2x1/2), one six of the every of the 12 corner atoms (12x1/6) and all
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Which of the following electronic configurations is not possible: (1) 1s 2 , 2s 2 (2) 1s 2 , 2s 2 , 2p 6 (3) 3d 10 4s 2 4p 2
Structure of DNA and RNA The sequence of bases along with the DNA and RNA chain makes its primary structure that controls the particular properties of the nucleic acid. An RNA
the increasing order(lower first) for the values of e/m (charge/mass) for e,p,n,a?
Con?gurational entropy of square lattice models for polymers In this problem, we will consider, several models for a polymer on a 2D square lattice. In particular, we will focus on
Silver salt method for acids - Chemical methods It is based upon the fact that silver salt of an organic acid on heating provides residue of metallic silver.
Q. Classification of emulsifiers? Emulsifiers can be classified under two categories. These are: • Natural: These are naturally present in foods. Some examples are phosphol
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